public Subject Delete(long subjectId)
{
try
{
Subject requestedSubject = _context.Subjects
.FirstOrDefault(s => s.SubjectId == subjectId);
if (requestedSubject != null)
{
_context.Remove(requestedSubject);
_context.SaveChanges();
return(requestedSubject);
}
throw new Exception("Subject that you want to delete doesn't exist!");
}
catch (Exception ex)
{
throw new Exception($"Error while trying to find subject! Error: {ex.Message}");
}
}
public Professor Delete(string professorId)
{
try
{
Professor requestedProfessor = _context.Professors
.FirstOrDefault(p => p.Id.Equals(professorId));
if (requestedProfessor != null)
{
_context.Remove(requestedProfessor);
_context.SaveChanges();
return(requestedProfessor);
}
throw new Exception("Professor that you want to delete doesn't exist!");
}
catch (Exception ex)
{
throw new Exception($"Error while trying to delete professor! Error: {ex.Message}");
}
}
public SeminarPaper Delete(long seminarPaperId)
{
try
{
SeminarPaper requestedPaper = _context.SeminarPapers
.FirstOrDefault(s => s.SeminarPaperId == seminarPaperId);
if (requestedPaper != null)
{
_context.Remove(requestedPaper);
_context.SaveChanges();
return(requestedPaper);
}
throw new Exception("Paper that you want to delete doesn't exist!");
}
catch (Exception ex)
{
throw new Exception($"Error while trying to find paper! Error: {ex.Message}");
}
}
public Student Delete(string studentId)
{
try
{
Student requestedStudent = _context.Students
.FirstOrDefault(p => p.Id.Equals(studentId));
if (requestedStudent != null)
{
_context.Remove(requestedStudent);
_context.SaveChanges();
return(requestedStudent);
}
throw new Exception("Student that you want to delete doesn't exist!");
}
catch (Exception ex)
{
throw new Exception($"Error while trying to find student! Error: {ex.Message}");
}
}